CNS + endrocine + neurones
- Created by: sophie.cumberpatch
- Created on: 15-09-20 14:15
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- Nervous + endocrine systems
- Human nervous system
- CNS + PNS
- PNS = ANS + SNS
- ANS = sympathetic + parasympathetic
- CNS = brain + spinal cord
- PNS = ANS + SNS
- CNS + PNS
- CNS = centre of conscious awareness, cerebral cortex = highly developed
- Left hemisphere = maths, logic
- Right = creative, language
- Left hemisphere = maths, logic
- PNS = transmits messages to/from CNS
- ANS = governs vital organs + functions
- SNS = governs muscle movement, info from sensory receptors
- Endocrine system = works with NS to control vital functions
- Slow but widespread + powerful
- Glands produce hormones secret into bloodstream effect cells with correct receptors
- Master gland = pituitary gland, controls all glands
- Thyroid gland = thyroxine affects cells in heart + metabolic rates
- Endocrine + ANS
- Fight/flight work in parallel
- ANS from resting state (parasympathetic) to physiological arousal sympathetic state
- Hypothalamus stimulates pituitary gland
- Releases adrenocorticotropic hormone
- ACTH stimulates adrenal gland to produce adrenaline
- Increases heart rate, breathing, panic etc
- ACTH stimulates adrenal gland to produce adrenaline
- Releases adrenocorticotropic hormone
- Hypothalamus stimulates pituitary gland
- ANS from resting state (parasympathetic) to physiological arousal sympathetic state
- Fight/flight work in parallel
- Neurones
- Sensory - messages from PNS back to CNS
- Motor - messages from CNS to muscles and glands
- Relay - connects sensory and motor
- Human nervous system
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